ML17252A980

Letter Confirming a 05/21/1973 Conversation Concerning Isolation Condenser High Condensate Flow Isolation DPIS3-1349B Being Out of Calibration on 05/15/1973 - Dresden Unit 3

ML17252A980
Person / Time
Site:	Dresden
Issue date:	05/21/1973
From:	Worden W Commonwealth Edison Co
To:	Anthony Giambusso US Atomic Energy Commission (AEC)
References
Download: ML17252A980 (2)

Text

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USAEC HQS GT\\i1N WU WSH 1973 MA\\' 22. M.l 9 0 I OTLXA 161 WAD2 l.l ( 1643) ( l *028233C 14.l) PD 05/2 l/r3 l 64Jts. ATOr-:*c ~NF%Y l.OMM TWX tiNIT

!CS IPMVEIA MVN

£:H209 TOVE M.ORRIS ILL 86 05-21 140P CDT I

PMS. A GI AMBUSSO.

. DEPUTY DIRECTOR. FOR REACTOR PROJECTS DIRECl"ORATE. OF :LIC~NSING US ATOMIC ENERGY CO~MISSION

• WASHD_C. 205 45 SUBJECT DPR-25 DRESDEN NEUCLEAR POWER STATION UNIT 3: THIS WILL.

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CONFIRM A CONVERSATION WITH MR FRED MAURA OF" YOUR OFF'ICE AT 1320 HO.URS* THIS DATE CONCERNING ISOL-ATION CONDENSER HIGH CONDENSATE. FLOW I SLAT I ON DPIS3-t 349B BEiNG OUT OF

. CALLIBRAT!ON. ON MAY 15, 1973 THE* INSTRUMENT MECHANI~S.

FOUND: THIS SWITCH TO HAV_E A TRIP SETT.I.NG OF 32. 7 tNCHES OF WATER

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• DIF'F'ERENTIAL*'WHICH EXCEEDS THE*TEHCNICAL SPECIF'ICATI.ONS LIMJT OF 32 INCHES OF' WATER.

THE SWITCH WAS.RESET TO TRIP AT 29.5. INCHES OF, WATER W P WORDEN StJPERINTENDERt. DRESDEN NE:QCLEAR HOWER STATION

. ROUTE 1 MORRIS IL~INOIS 732P EDT.

USAEC HQS GTWN DOCKETED USAEC

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